/*
 * Copyright (c) 1998, 2024 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0,
 * or the Eclipse Distribution License v. 1.0 which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 */

// Contributors:
//     Oracle - initial API and implementation from Oracle TopLink
package org.eclipse.persistence.annotations;

import java.lang.annotation.Retention;
import java.lang.annotation.Target;

import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

/**
 * The ChangeTracking annotation is used to specify the
 * {@linkplain org.eclipse.persistence.descriptors.changetracking.ObjectChangePolicy}
 * which computes changes sets for EclipseLink's {@linkplain org.eclipse.persistence.sessions.UnitOfWork} commit process.
 * An {@linkplain org.eclipse.persistence.descriptors.changetracking.ObjectChangePolicy} is stored on an Entity's descriptor.
 * <p>
 * A ChangeTracking annotation may be defined on an Entity, MappedSuperclass or Embeddable.
 *
 * @see ChangeTrackingType
 * @author Guy Pelletier
 * @since Oracle TopLink 11.1.1.0.0
 */
@Target({TYPE})
@Retention(RUNTIME)
public @interface ChangeTracking {
    /**
     * The type of change tracking to use.
     */
    ChangeTrackingType value() default ChangeTrackingType.AUTO;
}
